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input: touchscreen: gt1x: Avoid suspend/resume is invoked imbalanced

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Signed-off-by: Weixin Zhou <zwx@rock-chips.com>
Change-Id: I26733edacd48c6de11704e15998559e202935e11
This commit is contained in:
Weixin Zhou 2021-02-22 10:53:07 +08:00
parent 949ba26de3
commit 8168344c4a
1 changed files with 11 additions and 3 deletions
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14
drivers/input/touchscreen/gt1x/gt1x.c
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@ -635,6 +635,7 @@ static int gt1x_ts_remove(struct i2c_client *client)
#if defined(CONFIG_FB)
/* frame buffer notifier block control the suspend/resume procedure */
static struct notifier_block gt1x_fb_notifier;
static int tp_status;
static int gtp_fb_notifier_callback(struct notifier_block *noti, unsigned long event, void *data)
{
@ -646,26 +647,32 @@ static int gtp_fb_notifier_callback(struct notifier_block *noti, unsigned long e
#error Need add FB_EARLY_EVENT_BLANK to fbmem.c
#endif
if (ev_data && ev_data->data && event == FB_EARLY_EVENT_BLANK) {
if (ev_data && ev_data->data && event == FB_EARLY_EVENT_BLANK
&& tp_status != FB_BLANK_UNBLANK) {
blank = ev_data->data;
if (*blank == FB_BLANK_UNBLANK) {
tp_status = *blank;
GTP_DEBUG("Resume by fb notifier.");
gt1x_resume();
}
}
#else
if (ev_data && ev_data->data && event == FB_EVENT_BLANK) {
if (ev_data && ev_data->data && event == FB_EVENT_BLANK
&& tp_status != FB_BLANK_UNBLANK) {
blank = ev_data->data;
if (*blank == FB_BLANK_UNBLANK) {
tp_status = *blank;
GTP_DEBUG("Resume by fb notifier.");
gt1x_resume();
}
}
#endif
if (ev_data && ev_data->data && event == FB_EVENT_BLANK) {
if (ev_data && ev_data->data && event == FB_EVENT_BLANK
&& tp_status == FB_BLANK_UNBLANK) {
blank = ev_data->data;
if (*blank == FB_BLANK_POWERDOWN) {
tp_status = *blank;
GTP_DEBUG("Suspend by fb notifier.");
gt1x_suspend();
}
@ -723,6 +730,7 @@ static const struct dev_pm_ops gt1x_ts_pm_ops = {
static int gt1x_register_powermanger(void)
{
#if defined(CONFIG_FB)
tp_status = FB_BLANK_UNBLANK;
gt1x_fb_notifier.notifier_call = gtp_fb_notifier_callback;
fb_register_client(&gt1x_fb_notifier);